Energy Power Base TV Sound System with Bluetooth Wireless Technology Compact, high-performance, pedestal-style 2.1 system with Bluetooth wireless technology Utilizes separate tweeters and midrange drivers with dual, built-in subwoofers with front-firing ports Built-in Dolby Digital decoder allows for a no-hassle setup Switchable 3D surround feature simulates a multiple speaker system Supports TVs weighing up to 80 lbs.